The sprocket in my Dax 67 wouldn't fit over the coaster brake on my Cranbrook. Tried grinding the sprocket so it would fit but couldn't get it to go on correctly. And do i need to locktite the bolts on the motor. This is realy frustrating.

Really suggest you do some reading esp in the sticky's in the 2 cycle section and the mount section (I don't know if that's a frame mount or a rack mount) Highly recommend you replace the original mounting studs and with higher quality ones, and yes lok-tite everything. Use ny-lock nuts everywhere you can, I also replaced the 9 sprocket bolts with 1/4-20 good quality ones too. SBP sells a great bolt/stud kit for 9.95.